diff --git a/src/TransWithoutContext.js b/src/TransWithoutContext.js
index 672e0cf2..8d25e20e 100644
--- a/src/TransWithoutContext.js
+++ b/src/TransWithoutContext.js
@@ -362,8 +362,8 @@ export function Trans({
 
   if (components) {
     Object.keys(components).forEach((c) => {
-      if (!components[c].key) components[c] = cloneElement(components[c], { key: c });
-      const comp = components[c];
+      const componentKey = components[c].key || c;
+      const comp  = cloneElement(components[c], { key: componentKey });
       if (
         typeof comp.type === 'function' ||
         !comp.props ||